1908-] DR. KXUD AXDERSEX OX EATS. 289 



Measurements of Artibeus glaucus anclj watsoni. 



Skull, total length to front of c 



„ mastoid width 



„ width of brain-case 



„ zj-g-omatic width 



., maxiUarj" width across m^ 

 „ across cingula of canines 



Mandible, to front of inc 



Upper teeth, c-m^ 



Lower teeth, c-mj 



Ear-conch, length, inner margin 

 „ length, outer margin 

 „ width 



Tragus, length 



Lancet, length 



„ width 



Horseshoe, width 



Foreann 



Pollex 



3rd m e tacarpal 



nil 



IIP 



IIP 



4th metacarpal 



IVi 



IV2 



5th metacarpal 



VI 



V2 



Interfemoral 



Lower leg 



Foot, with claws 



Calcar 



Colour. — Of six skins, four are dark, two lio-hter coloured. 



Darker stage ; 4 skins, Bogava (Chiiiqui) and Cebaco I. ; 

 full-grown, teeth unworn or slightly worn, epiphyses of meta- 

 carpals separate in one, ossified in the others : — Upper side from 

 the shoulders backward sepia-brown (browner than Ridgway's 

 " sepia "), this colour confined to the narrow tips of the haii-s ; 

 base of hairs drab. Front part of upper side, from the shoulders 

 forward, of a rather lighter shade, more di-abbish brown, owing 

 to the darker hair- tips being extremely short or wanting ; base 

 of hairs approaching ecru-drab ; there Ls no contrast between the 

 hinder and anterior part of the back, the colour of the former 

 shading gradually into that of the latter. Under side dai-k grey. 

 White supra- and infraorbital stripes strongly pronounced. Ear- 

 conch very narro^dy margined with white. Tip of the third 

 digit and adjoiaing membrane not lighter-coloured. — The four 

 specimens are almo.st ahke in the shade of the colour. 



19* 



